1154G Minimum Possible LCM 【埃氏筛法枚举公约数】 传送门 题意:求个数中最小公倍数数值最小的两个数的下标。 参考博客:https://blog.csdn.net/qq_41157137/article/details/89353527 思路: ...Codeforces Round #552 (Div. 3) 补题 A. Restoring Three
首先计算一下前两个数的GCD,有2种可能: 1:如果GCD(x1,x2) == d,那就没必要再计算GCD(xi,xj) (1 < i < j <= n)了,只要计算一下LCM(x1,x2)即可,因为如果GCD(xi,xj) == d,LCM(xi,xj)肯定大于LCM(x1,x2);如果GCD(xi,xj) == d_ > d,LCM(xi,xj)有可能小于LCM(x1,x2),不过这个等...
You are given an arrayaconsisting of integersa1,a2,…,a**n Your problem is to find such pair of indicesi,jthatlcm(aiai,ajaj)is minimum possible. lcm(x,y) is the least common multiple of andxandy(minimum positive number such that bothxandyare divisors of this number). Input The first ...
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